docstr: test that some_ones vector can be recontructed 
docstr_tok: ["test","that","some_ones","vector","can","be","recontructed"]
code: def test_reconstruction(self):
      """test that some_ones vector can be recontructed"""
      a_dct = aubio.dct(16)
      a_in = np.ones(16).astype(aubio.float_type)
      a_in[1] = 0
      a_in[3] = np.pi
      a_dct_in = a_dct(a_in)
      a_dct_reconstructed = a_dct.rdo(a_dct_in)
      assert_almost_equal(a_dct_reconstructed, a_in, decimal=6)
  
file_path: aubio/python/tests/test_dct.py
imports: import numpy
  from numpy.testing import TestCase, assert_almost_equal
  import aubio
label_desc: Use image node_id 4 for calling the aubio_dct obj's underlying member method code with example usage: obj.test_reconstruction() without return types